In ancient poetry, "lonely place at sea" may not be a common image or place, so its appearance is not universal. But we can find some poems related to "sea" and "land" from ancient poems to understand how the ancients described and expressed these two elements.
In ancient poetry, "Lu" usually refers to a simple house or hut, and is sometimes used to express the image of seclusion or seclusion. "Sea" is often used to symbolize vastness, vastness, profundity and mystery.
For example, Wang Zhihuan, a poet in the Tang Dynasty, wrote in the Heron Pavilion: "The mountains cover the day, and the sea exhausts the golden river." Here, the "sea" symbolizes the endless distance. Another example is "Jiangnan Spring Day" by Du Mu, a poet in the Tang Dynasty, which mentioned: "Four hundred and eighty halls in the southern dynasties, in the misty rain." The "land" here refers to simple houses.